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Last seen: May 7, 2026
I think the worst I had was 15 minutes between starts. I expect it's no big stress for the system, but it really dents the efficiency, which is why I ...
My add-on Raspberry Pi controller does implement just such a thing, with a next_permitted_change countdown timer, currently generally one hour minimum...
After seeing Dave Gorman tot up the fees for a "Product of the Year" contest, I'm very cynical: who says it is "Most sustainable and innovative domest...
Come now, Derek, but then the owners of the utility companies would not be sure that their fixed costs would be covered and you can't expect capitalis...
@saz as I understand it, flow rate is higher and more critical with heat pumps and a lot of microbore was installed badly, with sections shared betwee...
Swytch looks great for daytime fair-weather riders but it looks like it might not work for me or many other people who cycle for transport year-round ...
Where are you getting the liquid soap ingredients from and what recipe are you using, please? I'm currently using the little cif dilute-at-home refi...
@alec-morrow I can't completely agree with that. The Mitsubishi FTC6 is simply not smart enough yet for all homes. I'm not here to make the fine adjus...
@kev-m The graphs are from the OpenEnergyMonitor emoncms add-on app called "MMSPHeatPump" which was posted to their forums. The output from the defaul...
Yes, that seems to be what's happening. In this graph, blue is the power output the controller has worked out, red is what the pump actually uses and ...
That will teach me to read too fast! I'd been away and only just managed to pass that horrible insulting discriminatory "are you a human?" test (I kno...
Some settings like the weather compensation curve are behind a long-press on the menu key (so not the usual tap to open the menu) but do not require a...
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Degrees of Separation
Latest Posts
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RE: Surface mount or bury primaries for heat pump installation?
The installation is almost done! I've written up two ...
By tomasmcguinness , 2 hours ago
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RE: Adventures in heat loss calculations
As others have said, well done, and thank you for posti...
By cathodeRay , 2 hours ago
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RE: Glass lined Cylinder for private water supply
This has turned into a fascinating little rabbit hole. ...
By Mars , 11 hours ago
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RE: Switch suitable to change between two inverter CT's
Last winter my battery ,32KWh, could run the house com...
By Jancold , 12 hours ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
@rob-of-york Thank you for that, whilst familiar with t...
By kilgorexv , 12 hours ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Agree with Major. And even if I was very happy with ...
By Batpred , 13 hours ago
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RE: Is the "divide by 2900" rule still valid?
There is another estimator that you could use, a formul...
By Rob of York , 16 hours ago
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RE: To re-pipe or not to re-pipe? Moving from oil boiler to air source heat pump.
@penval, really useful update. After all the discussion...
By Mars , 3 days ago
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RE: Who's your electricity provider and what's your tariff?
@papahuhu I prefer to look at it simplistically. We d...
By Old_Scientist , 4 days ago
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RE: Questions about A2A for heating as well as cooling
@rob-of-york I would concur with the underfloor insulat...
By Toodles , 4 days ago
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RE: New Vaillant Arotherm controls link to existing thermostats ; wired vs wireless
Nothing attached! I have rads but UFH makes the case ...
By JamesPa , 4 days ago
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RE: Cooling with air to water heat pumps
Passive cooling should always be the first call. Keep ...
By JamesPa , 4 days ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
@rob-of-york Thank you, I’m thinking along these same l...
By Toodles , 5 days ago
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@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 5 days ago
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